/***************************************************************************
 *   Copyright (c) 2019 Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>     *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  is distributed in the hope that it will be useful,      *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/

#ifndef SKETCHER_SKETCHGEOMETRYEXTENSION_H
#define SKETCHER_SKETCHGEOMETRYEXTENSION_H

#include <array>
#include <atomic>
#include <bitset>

#include <Mod/Part/App/Geometry.h>
#include <Mod/Sketcher/SketcherGlobal.h>


namespace Sketcher
{

namespace InternalType
{
enum InternalType
{
    None = 0,
    EllipseMajorDiameter = 1,
    EllipseMinorDiameter = 2,
    EllipseFocus1 = 3,
    EllipseFocus2 = 4,
    HyperbolaMajor = 5,
    HyperbolaMinor = 6,
    HyperbolaFocus = 7,
    ParabolaFocus = 8,
    BSplineControlPoint = 9,
    BSplineKnotPoint = 10,
    ParabolaFocalAxis = 11,
    NumInternalGeometryType  // Must be the last
};
}

namespace GeometryMode
{
enum GeometryMode
{
    Blocked = 0,
    Construction = 1,
    NumGeometryMode  // Must be the last
};
}

class ISketchGeometryExtension
{

public:
    // Identification information
    virtual long getId() const = 0;
    virtual void setId(long id) = 0;

    // Internal Alignment Geometry Type
    virtual InternalType::InternalType getInternalType() const = 0;
    virtual void setInternalType(InternalType::InternalType type) = 0;

    // Geometry functional mode
    virtual bool testGeometryMode(int flag) const = 0;
    virtual void setGeometryMode(int flag, bool v = true) = 0;

    virtual int getGeometryLayerId() const = 0;
    virtual void setGeometryLayerId(int geolayer) = 0;
};

class SketcherExport SketchGeometryExtension: public Part::GeometryPersistenceExtension,
                                              private ISketchGeometryExtension
{
    TYPESYSTEM_HEADER_WITH_OVERRIDE();

public:
    SketchGeometryExtension();
    explicit SketchGeometryExtension(long cid);
    ~SketchGeometryExtension() override = default;

    std::unique_ptr<Part::GeometryExtension> copy() const override;

    PyObject* getPyObject() override;

    long getId() const override
    {
        return Id;
    }
    void setId(long id) override
    {
        Id = id;
    }

    InternalType::InternalType getInternalType() const override
    {
        return InternalGeometryType;
    }
    void setInternalType(InternalType::InternalType type) override
    {
        InternalGeometryType = type;
    }

    bool testGeometryMode(int flag) const override
    {
        return GeometryModeFlags.test((size_t)(flag));
    };
    void setGeometryMode(int flag, bool v = true) override
    {
        GeometryModeFlags.set((size_t)(flag), v);
    };

    int getGeometryLayerId() const override
    {
        return GeometryLayer;
    }
    void setGeometryLayerId(int geolayer) override
    {
        GeometryLayer = geolayer;
    }

    constexpr static std::array<const char*, InternalType::NumInternalGeometryType>
        internaltype2str {{"None",
                           "EllipseMajorDiameter",
                           "EllipseMinorDiameter",
                           "EllipseFocus1",
                           "EllipseFocus2",
                           "HyperbolaMajor",
                           "HyperbolaMinor",
                           "HyperbolaFocus",
                           "ParabolaFocus",
                           "BSplineControlPoint",
                           "BSplineKnotPoint",
                           "ParabolaFocalAxis"}};

    constexpr static std::array<const char*, GeometryMode::NumGeometryMode> geometrymode2str {
        {"Blocked", "Construction"}};

    static bool getInternalTypeFromName(std::string str, InternalType::InternalType& type);

    static bool getGeometryModeFromName(std::string str, GeometryMode::GeometryMode& type);

protected:
    void copyAttributes(Part::GeometryExtension* cpy) const override;
    void restoreAttributes(Base::XMLReader& reader) override;
    void saveAttributes(Base::Writer& writer) const override;

private:
    SketchGeometryExtension(const SketchGeometryExtension&) = default;

private:
    using GeometryModeFlagType = std::bitset<32>;
    long Id;
    InternalType::InternalType InternalGeometryType;
    GeometryModeFlagType GeometryModeFlags;
    int GeometryLayer;

private:
    static std::atomic<long> _GeometryID;
};

}  // namespace Sketcher


#endif  // SKETCHER_SKETCHGEOMETRYEXTENSION_H
